That 1 share order is highly unlikely to be someone putting in an order for 1 share.
What it would more likely be is someone wanted say 50,000 shares at 1.4c but since it closed down with the preclose and the person who was only had 49,999 left after the sale before hand (or only had 49,999 to begin with). The order was executed to buy 49,999 from Person A and 1 shares from Person B to equal the buy order of 50,000 total shares.
It could also be someone putting an order in for 218,786 in total and all these sales happened with the new person having 1 shares executed from their sale order.
